Why Los Angeles is struggling to fix thousands of miles of sidewalks

The city estimates that some 4,500 of its total 10,750 sidewalk miles are in disrepair. According to a 2007 USC study, the city repaired a grand total of 64 miles of sidewalks, or 1.4 percent of damaged sidewalks, improving the city’s backlog to 72 years.

The reasons for this civic embarrassment go back even longer than 72 years. They are twofold. One is political, the other arboreal.
— nextcity.org